>> we needed a president, a man like barack obama, to say that. and maybe, just give these young men, not just african-american, but all young men a greater sense of hope, to instill in them some values. during the height of the civil rights movement, we grew up, we had something to stand up for. we had something to believe in. i grew up, i literally grew up on lunch counter stools and going on the freedom ride, i participated in a march. >> a feeling of purpose you're talking about. >> you had a sense of purpose. you had goals that we wanted to desegregate the lunch counters, the restaurants, to gain the right to vote. >> when you look back on that day 50 years ago on the mall, you have talked about it as a key moment in the civil rights movement. so many people have said it's pivotal. what did it change? >> the march on washington was a significant turning point. we had people coming from all over america. and americans living abroad, they left france, they left england, they got on planes and they came to washington. there were people black and